661628275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 1070931456

約数和(自身を除く): 409303181

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 83, 101, 175, 205, 275, 287, 385, 415, 451, 505, 581, 707, 913, 1025, 1111, 1435, 1925, 2075, 2255, 2525, 2905, 3157, 3403, 3535, 4141, 4565, 5555, 6391, 7175, 7777, 8383, 11275, 14525, 15785, 17015, 17675, 20705, 22825, 23821, 27775, 28987, 31955, 37433, 38885, 41915, 45551, 58681, 78925, 85075, 92213, 103525, 119105, 144935, 159775, 187165, 194425, 209575, 227755, 262031, 293405, 318857, 343703, 461065, 595525, 645491, 724675, 935825, 1138775, 1310155, 1467025, 1594285, 1718515, 2305325, 2405921, 3227455, 3780733, 6550775, 7971425, 8592575, 12029605, 16137275, 18903665, 26465131, 60148025, 94518325, 132325655, 661628275]

約数ペア:

[(1, 661628275), (5, 132325655), (7, 94518325), (11, 60148025), (25, 26465131), (35, 18903665), (41, 16137275), (55, 12029605), (77, 8592575), (83, 7971425), (101, 6550775), (175, 3780733), (205, 3227455), (275, 2405921), (287, 2305325), (385, 1718515), (415, 1594285), (451, 1467025), (505, 1310155), (581, 1138775), (707, 935825), (913, 724675), (1025, 645491), (1111, 595525), (1435, 461065), (1925, 343703), (2075, 318857), (2255, 293405), (2525, 262031), (2905, 227755), (3157, 209575), (3403, 194425), (3535, 187165), (4141, 159775), (4565, 144935), (5555, 119105), (6391, 103525), (7175, 92213), (7777, 85075), (8383, 78925), (11275, 58681), (14525, 45551), (15785, 41915), (17015, 38885), (17675, 37433), (20705, 31955), (22825, 28987), (23821, 27775)]